import 'package:flutter/material.dart';

class MySubjectPage extends StatefulWidget {
  @override
  _MySubjectState createState() => _MySubjectState();
}

class _MySubjectState extends State<MySubjectPage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('书影音'),
        elevation: 0,
      ),
      body: Text('hello world'),
    );
  }
}